i got a subaru. (announcer) love. it's what makes a subaru a subaru. >>> talk on nbc that jimmy fallon might take over "the tonight show" is no laughing matter for leno. actually, it is. here's jeanne moos. >> reporter: in a way, jay leno is living a fantasy. you know, when you know you're going to leave a job, but before you walk out the door, you unload on the boss. what jay is unloading are jokes about nbc's ratings. in one case, six jokes in under a minute. >> and the most common thing people are giving up for lent, watching nbc. the ratings are so bad, "the biggest loser" just a tv show, it's our newest motto. >> reporter: the jokes so offended the entertainment chief, robert greenblatt, that he fired off an e-mail to jay and jay fired back. leno's contract is up next year and the execs have promised "the tonight show" to jimmy fallon. what did he say this time, asked mediaite. here's what he said monday. >> st. patrick drove all the snakes out of ireland and then they came into the united states and became nbc e